10th class Math Unit 5 MCQs
Chapter 5 MCQs 10th Class Math
Sets And Functions:
1. A collection of well-defined objects is called:
a. Set
b. Subset
c. Power set
d. None of these
2. A set Q = (a/b | a,b ∈ Z ∧ b ≠ 0 )is called a set of:
a. Irrational numbers
b. Whole numbers
c. Natural numbers
d. None of these
3. The different number of ways to describe a set are:
a. Three
b. One
c. Four
d. Two
4. A set with no element is called:
a. Singleton set
b. Subset
c. Super set
d. Empty set
5. The set {x|x ∈W∧x ⩽101} is:
a. Null set
b. Infinite set
c. Finite set
d. Subset
6. The set having only one element is called:
a. Singleton set
b. Null set
c. Subset
d. Power set
7. Power set of an empty set is:
a. { ∅ , {a} }
b. ∅
c. { ∅ }
d. {a}
8. The number of elements in power set {1,2,3}:
a. 8
b. 4
c. 9
d. 6
9. A ⊆ B , then A ∪ B is equal to:
a. O
b. A
c. B
d. None of these
10. If A ⊆ B , then A ∩ B is equal to:
a. ∅
b. A
c. B
d. None of these
11. If A ⊆ B , then A – B is equal to:
a. ∅
b. A
c. B – A
d. B
12. (A ∪B) ∪C is equal to:
a. A ∪ (B ∪C)
b. A ∩ (B ∪C)
c. A ∩ (B ∩C)
d. (A ∪B)∩C
13. A ∪ (B ∩C) is equal to:
a. (A ∩B)∪ (A ∩C)
b. (A ∪B)∩ (A ∪C)
c. A ∪ (B ∪C)
d. A ∩ (B ∩C)
14. If A and B are disjoint sets, then A ∪ B is equal to:
a. ∅
b. A
c. B ∪ A
d. B
15. If number of elements in set A is 3 inset B is 4, then number of elements in A x B is:
a. 12
b. 3
c. 7
d. 4
16. If number of elements in set A is 3 and in set B is 2, then number of binary relations in A x B is:
a. 28
b. 23
c. 22
d. 26
17. The domain of R ={(0,2), (2,3), (3,3), (3,4)} is:
a. {0,2,4}
b. {0,3,4}
c. {2,3,4}
d. {0,2,3}
18. The range of R ={(1,3), (2,2), (3,1), (4,4)} is:
a. {1,2,3,4}
b. {1,2,4}
c. {1,3,4}
d. {3,2,4}
19. Point (-1, 4) lies in the quadrant:
a. III
b. I
c. IV
d. II
20. The relation {(1,2), (2,3), (3,3), (3,4)} is:
a. Not a function
b. Onto function
c. One-one function
d. Into function
21. A set with no element is called:
a. ubset
b. Empty set
c. Singleton set
d. Super set
22. Symbol of union is:
a. ∪
b. ∩
c. ≠
d. ∈
23. The set having only one element is called:
a. Subset
b. Null set
c. Singleton set
d. None of these
24. If A ={1, 2, 3, 4, 5} and B ={2,4,5,6,8} then A-B is equal to:
a. {2,5}
b. {2,4,5}
c. {4,5}
d. {1,3}
25. If U ={1, 2, 3, . . ., 10} and A ={2, 4, 6, 8} then Ac is equal to:
a. {3,4,6,7,9,10,}
b. {2,3,4,6,7,8,10}
c. {2,4,6,8,10}
d. {3,4,5,6,7,10}
26. Venn diagram was first used by ………:
a. Newton
b. John Venn
c. Rokain
d. None of these
27. Point (-1, 4) lies in the quadrant:
a. III
b. I
c. IV
d. II
28. {2, 3, 5, 7, 11, 13, . . .} is a set of:
a. Prime numbers
b. Natural numbers
c. Rational numbers
d. Whole numbers
29. {1, 2, 3, 4,. . .} is a set of:
a. Whole numbers
b. Natural numbers
c. Rational numbers
d. Prime numbers
30. The set of integers is denoted by:
a. Z
b. I
c. E
d. N
31. The complement of U is ………:
a. Natural numbers
b. Whole numbers
c. Rational numbers
d. Null set
32. If A ={1, 2, 3, 4} and B ={4,5,6,7} then AUB is equal to:
a. {1,2,3,4,5,6,7}
b. {2,4,5}
c. {1,2,3,4,5}
d. {2,3,4,5,6,7}
33. The number of power set of a set {0} is ………:
a. 3
b. 1
c. 4
d. 2
34. Venn diagram was introduced by:
a. Mark Venn
b. John Venn
c. George Venn
d. David Venn
35. The relation {(1,2),(2,3),(3,3),(3,4)} is ……… function.
a. One-one function
b. Onto function
c. Into function
d. Not a function
36. De Morgan’s law is (A ∩B)’ = . . . . . . . . .
a. A’∩ B’
b. A’∪B’
c. (A’∪B’)∪C
d. (A ∩B)∪A
37. The domain of R ={(a ,a ),(a ,b),(b,c)} is ………:
a. {b,c}
b. {a,c}
c. {a,b,c}
d. {a,b}
38. If f :A →B and range of f=B, then f is a/an ……… function.
a. Injective
b. Onto
c. Into
d. None of these
39. ……… is the smallest number of the prime numbers.
a. 2
b. 0
c. 3
d. 1
40. The number of elements of the power set {a ,b} are:
a. 3
b. 1
c. 4
d. 2
41. There are ……… methods to describe a set.
a. 3
b. 1
c. 4
d. 2
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